... size.2,Voltage: 48V3,Rated power:450W.4,Maximum Power: 1000W. 5,Maximum Current:22A6,MOSFET: 9pipes.Function brief introduction:1 ... -ABS optional)6,Limited speed7,1:1 power-assisted8,Prevent bicycle from running when starting9,Driving further for power-saving design10 ... can build up long term business cooperation in near future. 48V 450W electric bicycle kit